Clock's 38311

How far apart are the tips of the clock's hands in 3 hours if the larger hand is 124 mm long and the smaller 75 mm?

Correct answer:

x =  144.9172 mm

Step-by-step explanation:

γ=90  a=124 mm b=75 mm  a2+b2 = x2  x=a2+b2=1242+752=21001=144.9172 mm

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